Kuchengetwa kwemvura uye musimboti weHPMC cellulose ether

Rimwe remabasa ekutanga ehydroxypropylmethylcellulose (HPMC) cellulose ethers ndeyekukora uye kudzikamisa mune zvekuvaka, chikafu uye zvigadzirwa zvekuchengeta munhu. Zvisinei, inoitawo basa rinokosha pakuvandudza kuchengetwa kwemvura mumashandisirwo akawanda, kusanganisira matairi adhesives, grouts uye simenti-based mortars.

Kuchengeta mvura kunotsanangurwa sekugona kwechinhu kuchengetedza kana kuchengetedza mvura yakawedzerwa. Kana chinhu chisina kubata mvura, chinogona kukonzera kuoma kana kutsemuka, izvo zvinokanganisa kuita kwayo kwese.

Nheyo yeHPMC cellulose ether yekuvandudza kuchengetwa kwemvura inobva pane yayo yakasarudzika molecular chimiro. HPMC cellulose ether is polysaccharide polymer inoumbwa neglucose units yakabatanidzwa ne β-(1,4) -glycosidic bonds. Iyo ine zvakare hydroxypropyl uye methyl mativi mapoka, ayo anoipa kunyungudika kwemvura uye kuchengetedza mvura.

Kana HPMC cellulose ether yawedzerwa kudhaka-samende, boka rayo rehydroxypropyl richave rakashongedzwa pamusoro pezvimedu zvesimende. Izvi zvinogadzira danda remvura rakatenderedza pellets, kudzivirira kuti asaoma nekukasira. Panguva imwecheteyo, boka remethyl rinopa steric chipingamupinyi, kudzivirira simenti masimidhi kubva pakusunga zvakanyanya uye kugadzira dense matrix. Izvi zvinobvumira mvura kuti iparadzirwe nyore nyore mudhaka rese, ichivandudza kushanda kwayo, kuenderana uye kuita kwese.

Kuchengetwa kwemvura kunogona kuyerwa uchishandisa nzira dzakasiyana siyana, kusanganisira kuyedza kusveta uye kuyedzwa kwecentrifugation. Muedzo wekusveta unoyera huwandu hwemvura inogona kubata chinhu mushure mekuiswa pavacuum. Iyo centrifuge bvunzo inoyera huwandu hwemvura inogona kuchengetwa nechinhu mushure mekuiswa pasi pe centrifugal force. Iyi bvunzo inobatsira kuona kushanda kweHPMC cellulose ether mukuvandudza kuchengetwa kwemvura mumashandisirwo chaiwo.

Pamusoro pekuvandudza kuchengetwa kwemvura, HPMC cellulose ethers inopa mamwe mabhenefiti mune zvekuvaka uye mamwe maapplication. Inonatsiridza kunamatira uye inoderedza kusagirwa kwematairi anonamira, inovandudza kushanda uye kusimba kwechisungo chemasimende-based mortars, uye inovandudza rheology uye kugadzikana kwependi uye machira.

Muchidimbu, HPMC cellulose ethers inoita basa rakakosha mukusimudzira kuchengetwa kwemvura muzvivakwa zvekuvaka uye zvimwe zvakawanda zvinoshandiswa. Yayo yakasarudzika mamorekuru chimiro uye kunyungudika kwemvura hunhu hunoita kuti ive inoshanda yekuchengetedza mvura yekuwedzera, ichiunza akawanda mabhenefiti pakuita kwechigadzirwa chekupedzisira.